Vulnerability Information
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Vulnerability Title
Envoy Proxy use after free when route hash policy is configured with cookie attributes
Vulnerability Description
Envoy is a cloud-native, open source edge and service proxy. Prior to versions 1.30.4, 1.29.7, 1.28.5, and 1.27.7. Envoy references already freed memory when route hash policy is configured with cookie attributes. Note that this vulnerability has been fixed in the open as the effect would be immediately apparent if it was configured. Memory allocated for holding attribute values is freed after configuration was parsed. During request processing Envoy will attempt to copy content of de-allocated memory into request cookie header. This can lead to arbitrary content of Envoy's memory to be sent to the upstream service or abnormal process termination. This vulnerability is fixed in Envoy versions v1.30.4, v1.29.7, v1.28.5, and v1.27.7. As a workaround, do not use cookie attributes in route action hash policy.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Vulnerability Type
释放后使用
Vulnerability Title
Envoy 安全漏洞
Vulnerability Description
Envoy是一款开源的分布式代理服务器。 Envoy 1.30.4、1.29.7、1.28.5和1.27.7之前版本存在安全漏洞，该漏洞源于在配置路由哈希策略时使用cookie属性时引用了已经被释放的内存，导致Envoy内存的任意内容被发送到上游服务或进程异常终止。
CVSS Information
N/A
Vulnerability Type
N/A